Silcoon sits in the middle of its evolution line — stronger than Wurmple but not yet at full power. Most trainers push through to Beautifly as fast as possible. Part of the Gen 3 roster. Only weak to Fire, Flying, and Rock.
Nothing fancy in Silcoon's spread. It leans mixed with Defense out front. And you'll get 2 Defense EVs per KO for it. Follows a medium-fast 1M XP curve.
Having wrapped silk around the branches of a tree, it quiescently awaits evolution.
Silcoon Weakness
AvgType-wise, Silcoon takes extra damage from Fire, Flying, and Rock. Silcoon's physical bulk (base 55 Def) helps cushion physical weakness hits, but special attackers are the bigger threat.
- Fairy type does not exist — Dragon has fewer checks
- Physical / Special split now per-move (introduced Gen IV)
Wurmple can evolve into Silcoon and Cascoon. Silcoon sits before the split, so check the evolution methods below to pick your path. Defense has grown the most so far (+20), but there's still another 190 stats to gain in the final evolution.
How to Evolve
Breed with Silcoon to get Wurmple eggs easily using 47 partners from the Bug egg group.
Best Build
No build content available for this Pokemon in Gen 4.
Try selecting a different game/generation filter, or check back later.
A compact toolkit overall. The offense runs through Bug Bite for Silcoon, with Poison and Normal coverage doing what it can. Don't expect versatility from this one.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Reminder Moves
decent spawn rates across 2 locations for Silcoon in mid-game routes. Scroll the sorted list below and pick whichever spot sits closest to your current route. The rate differences between locations are worth comparing.
Where To Catch Silcoon in HeartGold & SoulSilver
The path to Silcoon starts with Wurmple at Lv. 2-36 via headbutt and walking encounters. 2 catchable stages total, with locations listed for each one below.
Step 1Catch WurmpleLEGENDARYPallet TownHeartGoldHeadbutting treesLv.2-10LimitedEarlyCityPost-gameLEGENDARYPallet TownSoulSilverHeadbutting treesLv.2-10LimitedEarlyCityPost-gameLEGENDARYPewter CitySoulSilverHeadbutting treesLv.2-10LimitedEarlyCityPost-gameLEGENDARYPewter CityHeartGoldHeadbutting treesLv.2-10LimitedEarlyCityPost-gameLEGENDARYRoute 1SoulSilverHeadbutting treesLv.2-10LimitedEarlyRoutePost-gameLEGENDARYRoute 1HeartGoldHeadbutting treesLv.2-10LimitedEarlyRoutePost-gameLEGENDARYRoute 2 - NorthHeartGoldHeadbutting treesLv.2-10LimitedEarlyRoutePost-gameLEGENDARYRoute 2 - NorthSoulSilverHeadbutting treesLv.2-10LimitedEarlyRoutePost-gameLEGENDARYRoute 2 - SouthHeartGoldHeadbutting treesLv.2-10LimitedEarlyRoutePost-gameLEGENDARYRoute 2 - SouthSoulSilverHeadbutting treesLv.2-10LimitedEarlyRoutePost-gameLEGENDARYRoute 3SoulSilverHeadbutting treesLv.2-10LimitedEarlyRoutePost-gameLEGENDARYRoute 3HeartGoldHeadbutting treesLv.2-10LimitedEarlyRoutePost-gameLEGENDARYViridian CitySoulSilverHeadbutting treesLv.2-10LimitedEarlyCityPost-gameLEGENDARYViridian CityHeartGoldHeadbutting treesLv.2-10LimitedEarlyCityPost-gameEASYNational Park - Bug Catching ContestSoulSilverGrassLv.24-36UncommonMidFacilityPost-game (Thu, Sat)EASYNational Park - Bug Catching ContestHeartGoldGrassLv.24-36UncommonMidFacilityPost-game (Thu, Sat)LEGENDARYFuchsia CityHeartGoldHeadbutting treesLv.21-30LimitedMidCityPost-gameLEGENDARYFuchsia CitySoulSilverHeadbutting treesLv.21-30LimitedMidCityPost-gameLEGENDARYRoute 12SoulSilverHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 12HeartGoldHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 13SoulSilverHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 13HeartGoldHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 14SoulSilverHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 14HeartGoldHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 15HeartGoldHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 15SoulSilverHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 18HeartGoldHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 18SoulSilverHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 21HeartGoldHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 21SoulSilverHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 22SoulSilverHeadbutting treesLv.21-30LimitedMidRoutePost-gameLEGENDARYRoute 22HeartGoldHeadbutting treesLv.21-30LimitedMidRoutePost-game
Step 2Silcoon ✓EASYNational Park - Bug Catching ContestSoulSilverGrassLv.25-32UncommonMidFacilityPost-game (Thu)EASYNational Park - Bug Catching ContestHeartGoldGrassLv.25-32UncommonMidFacilityPost-game (Thu)or evolve from Wurmple (Step 1)
At 205 BST, Silcoon is firmly in pre-evolution territory. Evolve it into Cascoon before bringing it to any serious fight.
Silcoon's biggest threats include Blaziken (Fire), Dodrio (Flying), and Aerodactyl (Rock), all carrying super-effective STAB moves. At base 15 Speed, Silcoon won't outrun any of these threats so switching to a resist is usually the safer play.
Shed Skin is the go-to ability for Silcoon. It has a 33% chance of curing any major status ailment after each turn. It's Silcoon's only ability.
Silcoon is leaning toward the physical side (base 35 Attack). Fragile — can't afford to take many hits, too. But the speed tells the real story — base 15 Speed is low. Priority moves or Trick Room are the way to go.
Silcoon appears in 14 games, including Ruby & Sapphire, FireRed & LeafGreen, and Emerald.
Debuting in Ruby & Sapphire, Silcoon appears in 14 games across 7 generations. A reliable presence in a solid number of games, typically found through catching or hatching as a base form.
- Gen IY
Yellow - Gen IRB
Red & Blue - Gen IIGS
Gold & Silver - Gen IIC
Crystal - Gen IIIRSDebut
Ruby & Sapphire - Gen IIIFRLG
FireRed & LeafGreen - Gen IIIE
Emerald - Gen IVPt
Platinum - Gen IVHGSS
HeartGold & SoulSilver - Gen IVDP
Diamond & Pearl - Gen VBW
Black & White - Gen VB2W2
Black 2 & White 2 - Gen VIXY
X & Y - Gen VIORAS
Omega Ruby & Alpha Sapphire - Gen VIIUSUM
Ultra Sun & Ultra Moon - Gen VIISM
Sun & Moon - Gen VIILGPE
Let's Go Pikachu & Eevee - Gen VIIISwSh
Sword & Shield - Gen VIIIPLA
Legends: Arceus - Gen VIIIBDSP
Brilliant Diamond & Shining Pearl - Gen IXSV
Scarlet & Violet - Gen IXLZA
Legends: Z-A